Improvement in automatic boiler-feeders



2 Sheets-Sheet 1.A

M. SIMPSON.` l --Automaio Boiler-Feeder.. No. 210,365.

.- Patented Novv.26, 1878.

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2 Sheets-Shelet 2.

y J.:M.SIMPS0NL Automatic Boiler-Feeder.

Patented Nov. 26.1878.

WVLJmesses g/qpccniegr N. PETERS. PHOTO-LITHOGRAPH UNITED STATES` PATENT OEEroE. I

JOSIAH M. SIMPSON, OF OSHKOSH, VVISGONSIN.

IMPROVEMENT IN AUTOMATIC BOlLER-FEEDERS.

Specification forming part of Letters Patent No. 210,365, dated November 26, 1878; application iiled August 8, 1878.

To all whom it 'may concern:

Be it known that I, J osinn M. SrMPsoN, of Oshkosh, in the county of Vinnebago and State of Wisconsin, have invented certain new and useful Improvements in Automatic Steam-Boiler Feeders; and I do hereby vdeclare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawing, making a part of this specification, in which- Figure l is a vertical sectional view of an automatic steam-boiler feeder embodying the improvements in my invention. Fig. 2 is a vertical sectional view of va'll except the waterchamber. Fig. 3 is a view of the main steamvalve and stem. Fig. 4 is a view of the auxiliary steam-valve. Fig. 5 is an elevation, showing the connection between the auxiliary steam-valve and the rock-shaft, which is operated by the iioat in the water-chamber; and Fig. 6 shows the method of connecting the boiler-feeder with an upright boiler.

This invention relates to improvements in boiler-feeders for steam-boilers 5 and consists, first, of a double-faced steam-valve, having a steamway up through its center, in connection with a stem provided with a steam-chamber, having an auxiliary steam-valve and steamports 5 secondly, of a case or standard for inclosing the aforesaid valves and stems, and a siphon provided with steam inlet and outlet and water-inlet, in connection with a waterchamber having a iloat which operates a rockshaft connected with the auxiliary steamvalve.

lt further consists in improvements in the construction of the boiler-feeder, all of which will be hereinafter fully described, and particularly pointed out in the claims.

Inthe accompanying drawing similar letters of reference indicate like parts of the invention.

The double-faced steam-valve G has the steamway V up through its center, and is provided with a stem, T, in which is a steamchamber, K, having an auxiliary-valve, J. ghe stem T is also provided with steam-ports The case or standard B contains, in addition to the stem T and valves C and J, the siphon D, and is provided with the steam-inlet Gr, steam-outlets E and F, and water-inlet I.

The steam-inlet Gr leads from the boiler to the steam-chamber H. The steain-outlet E leads from the water-chamber A to the doublefaced valve-chamber (l, and thence, when the valve C is open, to the open air through the exhaust F. The water-inlet I leads from the well or reservoir, through check-valve P, to siphon D, thence to the water-chamber A.

The float S is secured by a stem to the rockshaft M by an adjustable rod and cranks, O O.

The water-chamber Ahas an inlet, W, from the siphon D, and an outlet, It, to the waterspace in the boiler.

The steam-passage E acts as both inlet and outlet for the steam to the water-chamber A. A-counter-balance, N, for the iloat S is connected to one end of the rock-shaft M, as shown.

Fig. 6 shows the manner of connecting the boiler-feeder with a common upright boiler. The same plan applies equally well when the connection is made with any other kind of a boiler. A

It will be observed that, when the feeder is connected with the pipes leading to the boiler, it should stand at such a height with relation to the surface of the proper water-line in the boiler that the iloat S will float a little more than clear of the bottom of the water-chainber A.

The operation of the invention is as follows, starting with steam-pressure in the boiler: As the water is converted into steam, the watersurface line in both the boiler and the Waterchamber A of the boiler-feeder descends. The float S descends with the water in the chamber A. A triflin g descent of the iloat S, starting at the level above described, causes it, through its connections O O, to so move the auxiliary valve J as to open steam-communication from the steam-chamber H through the upper port, L, in the valve-stem T to the steam-chamber U. The area of the top ofthe valve-stem T exposed to pressure in the steamchamber U being greater than the area of the double-faced valve C at either seat, with steam admitted to the chamber U, the main valve C will close down upon its lower seat and cut off communication between thc steamchamber H and water-chamber A, and at the same time will open communication between the water-chamber A and the exhaust E, and permit the steam contained in the water-chamberA to escape to the open air, thus relieving the waterchamber A from boiler-Inessure. At the instant that the steam exhausts, as above described, the check-valve Rin the outlct-pipe X, between the feeder and the boiler, closes, and as the steam-pressu1e is out the siphon D commences to operate to fill the waterchamber A from the well or reservoir, drawing its supply through the pipe I. As the water-chamber A ills up the float S ascends with the water until, when nearly at the top, it has so moved the auxiliary valve J that it closes communication between the steam-chambers H and U, and opens columnnication between the upper and lower ports, L L, in the valve'stem T, thus permitting the steam to exhaust from the chamber U to lthe open air by way of the principal exhaust-pipe F. The pressure is now removed from the top ot' the valve-stem T, and, as pressure always exists upon the lower side of the double-faced valve C when the feeder C is in operation, it will force thc valve C up and close it upon its upper valve-seat, thus openin g communication between the steam-chamber H and the water-chamber A and renewing the boilerpressure in the water-chamber A, and permitting the water contained in the chamber A to flow through the pipe X and check-valve R into the boiler, as it necessarily seeks its level.

lhen the iioat has fallen to the line iirst described the operation is repeated as frequently asthe boiler needs water. The variation ot' the height of the water in the boiler' is buttriiling. The auxiliary valveJ is arranged,

with relation to its connections and ports L L, so that when it has opened the upper port L sufficiently to admit steam enough to drive the main valve C down, the said valve C in its descent will open the port still farther, permitting freer passage of thestcam. The same result is obtained with relation to the exhaust from the steam-chamber U in the upward movement ot' the main valve C.

Having thus described my invention, what I claim as new and useful, and desire to secure by Letters Patent, is

l. In a boiler-feeder, the double-faced valve C, provided with steam-passage V and stem T, having ports L L, in combination with the auxiliary valve J, connecting-rod O O, and rock-shaft M, constructed and operating substantially as and for the purposes set forth.

2. In a boiler-feeder, the steam-valve and siphon-case B, provided with the steam-chambers H and U, steam and water inlets and outlets F, G, E, and I, constructed and operating substal'ltially as and for the purposes setforth.

3. The combination, with the water-chamber A, provided with the float S, inlet XV, and outlet It X, of the rock-shaft M, counter-balance N, connecting-rod 0 O, the stem T, valves J C, and ease B, having steam and water inlets and outlets, constructed and operating substantially as and for the purposes set forth.

4. In a boiler-feeder, the siphon l) and water-pipe I, having check-valve I), in combination with the water-chamber A, having iioat S, case B, having steam and water inlets and outlets E F G I, valves C J, steam-chambers H U, and cranks and rods 0 0, constructed and operating substantially as and for the purposes set forth.

In testimony that I claim the fbrcgoing improvements, as above described, I have hereunto set my hand and seal this 26th (lay of Julie, 1878.

JOSIAH M. SIMPSON. [L.

\Vitnesses:

O. H. HARRIS, J. B. MCLERAN. 

